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Time-layer Cushion Pulvina chronostrata antisanensis
Specimen · N°049 · Ice · ▶ Film

Pulvina chronostrata antisanensis

Within a single plant, several times lie sleeping.

FOUND 0.5°S 78.1°W · Paramo wetlands at the foot of Antisana, Ecuador  ·  ✝ EX · Last seen 2005

The Time-layer Cushion is an alpine plant forming a half-dome cushion 30–40 cm across. Countless small deep-green rosettes pack and overlap into a dome pressed low against the ground. At the cushion’s centre the tissue is old, faded to pale amber; toward the rim it passes into layers of fresh bright green, and near the edge small pale-cream star-shaped flowers open here and there. While night frost seals the surface, the outer growing-points rest and the centre alone quietly keeps its tissue alive. Thus within a single plant, an old generation at the core and a young one at the rim — different layers of time — live together. Somewhere on the paramo it is always alive; yet within any one plant, many times lie folded together as it fades.

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Portrait

Vertical, as filmed / tap to play
FULL FILM · also on social

“The stone that holds time”

This footage was made vertical (9:16) and is also published on social media. The archive keeps it in its original ratio.

9:16 VERTICALFULL EDITSOUND ON
Narration
0:00 / --:--
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Specimen Plates

8 plates · hover to enlarge
Time-layer Cushion plate 1PLATE I
Time-layer Cushion plate 2PLATE II
Time-layer Cushion plate 3PLATE III
Time-layer Cushion plate 4PLATE IV
Time-layer Cushion plate 5PLATE V
Time-layer Cushion plate 6PLATE VI
Time-layer Cushion plate 7PLATE VII
Time-layer Cushion plate 8PLATE VIII
ARCHIVAL PRINTThis specimen is available as a printable plate: Illustrated edition — Etsy ↗ · Photographic edition — Etsy ↗
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Field Note

Habitat
Paramo wetlands at the foot of Antisana, Ecuador. On cold high moorland near 4,000 m, it grows pressed low against sodden peat that freezes at the surface night after night.
Local name
The stone that holds time
Folklore
Locally it is held that the older time sleeps toward the centre of the Time-layer Cushion — a mountain marker, passed down, that reminds the traveller not to hurry.
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Locator

Coordinates
0.5°S 78.1°W
Paramo wetlands at the foot of Antisana, Ecuador
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Record

Within a single plant, several times lie sleeping.

Centre and rim are living in different generations.

Paramo wetlands at the foot of Antisana, Ecuador

Cold peatland, where the surface freezes night after night.

Through the frost, the outer growing-points quietly rest.

And the centre alone keeps time, all by itself.

MoreFull specimen data — classification, scientific name, etymology
06

Classification

Classification & specimen data
Scientific name
Pulvina chronostrata antisanensis  N. Drei, 2002
Taxonomy
Plantae › Angiosperms › Dicotyledons › PulvinalesPulvinaceaePulvina › chronostrata
Voucher
AVF-049 · Holotype
Archive of Vanished Flora (AVF)
Conservation
✝ EX — Extinct Last seen 2005
Collector
Y. Aoki
2001-02-20
Synonym
Pulvinopsis chronostrata M. Castellan, 1999
Protologue (Latin)
Planta humilis, caule brevissimo, petalis albidis nitentibus, in loco aperto crescens. Typus: Paramo wetlands at the foot of Antisana, Ecuador. Species iam extincta.
Discovered / Described
2001 / 2002
Height
5〜15 cm
Life form
Rosette perennial
Phyllotaxy
Basal (rosette)
Chromosome
2n = 16
Flowering
A few hours around dawn
Pollination
Nocturnal small moths
Substrate · pH
Acidic peat (pH 3.8〜4.5)
Elevation
2,400〜3,000 m
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Etymology

Etymology of the name
PulvinaGENUS
The etymology is not recorded.
chronostrataEPITHET
The etymology is not recorded.

Addenda

later field notes
2026-06-24 · Thaw-Window Flowering

Before dawn it is almost indistinguishable from Azorella-like cushions and frost-heaved peat. The flowers open only for two or three hours around midday after the ice withdraws, and even in a settled year the interval lasts fewer than four days. A few old sheets labelled Werneria or Plantago seem to preserve only marginal rosettes; without the amber central tissue, the plant would have slipped past recognition.

2026-06-24 · Seedlings in Peat Fissures

During bloom I saw small dipterans and dull metallic beetles moving low across the cushions, but visits ceased once the afternoon wind rose. The anthers sit close to the stigma, suggesting a capacity for limited selfing. The ripe achenes do not travel far; they drop into narrow peat fissures opened by freeze-thaw. Seedlings occur only along seepage margins, between Sphagnum and Juncus, so the stands form patches rather than a pure cover.

2026-06-24 · The Untrampled Bog

The cushions look firm, yet the peat beneath is buoyed by seepwater, and a single boot can sink the rim. Herders reportedly use the pale mounds as markers in fog while warning children not to approach them. They are not offering stones for the mountain so much as signs that one should spare the bog and take the longer way around. The name “stone that holds time” sounds less like praise of slowness than a practical memory: paramo water must not be hurried.

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Related

Specimens of the same habitat
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